Method and device for power adjustment in ue and base station

ABSTRACT

A method and device for power adjustment in a user equipment and a base station are disclosed in the present disclosure. The user equipment receives first information which is used to trigger a first operation, the first operation including an accumulation reset corresponding to a first power value; and then receives K piece(s) of target information and transmits a first wireless signal. A transmission power value of the first wireless signal is a first power value; the first power value is irrelevant to all piece(s) of target information received prior to triggering the first operation. The K piece(s) of target information is(are) received after triggering the first operation. The sum of K power offset value(s) is used to determine the first power value. The K power offset value(s) are respectively indicated by the K piece(s) of target information.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. patent Ser. No. 16/455,767,filed on Jun. 28, 2019, which is a continuation of InternationalApplication No. PCT/CN2017/114557, filed Dec. 5, 2017, claiming thepriority benefit of Chinese Patent Application Serial Number201611253311.4, filed on Dec. 29, 2016, the full disclosure of which isincorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to a transmission method and device forsupporting power adjustment in a wireless communication system, and moreparticularly to a transmission scheme and device for supporting poweradjustment in a wireless communication system in which a large number ofantennas are deployed on a base station side.

Related Art

In the existing Long Term Evolution (LTE) system, Reset of Accumulationin the uplink power control mechanism is triggered by thereconfiguration of the p0-UE-PUSCH field in the Radio Resource Control(RRC) signaling or Random Access Response (RAR) information. Thep0-UE-PUSCH field is UE-specific signaling.

Massive Multiple-Input Multiple-Output (MIMO) has become a researchhotspot for next-generation mobile communications. In massive MIMO,multiple antennas can improve communication quality by forming narrowerbeams pointing in a specific direction through beamforming. Since thebeam width is very narrow, the transmission paths of beams pointing indifferent directions are different. This causes significant differencesamong long-term channel fading experienced by signals using differentbeamforming vectors. This differences among long-term channel fadingbrings new problems to Reset of Accumulation in the uplink power controlmechanism.

SUMMARY

Through research, the inventors found that an intuitive mechanism forReset of Accumulation in large-scale MIMO scenarios is that each beamuses an independent reset mechanism. The base station transmits anindependent p0-UE-PUSCH field for the antenna port groups correspondingto different beams to complete the accumulation reset. However, there isan obvious problem with this method. When the UE is configured withmultiple antenna port groups at the same time, and the switching betweenmultiple antenna groups is frequent, the above-mentioned independentaccumulation reset based on each antenna port group brings greatcomplexity to the uplink power control, and results in a problem offrequent reset.

In view of the above problem, the present disclosure provides asolution. It should be noted that, the embodiments of the presentdisclosure and the features of the embodiments may be arbitrarilycombined with each other. For example, the embodiments in the userequipment (UE) and the features in the embodiments of the presentdisclosure can be applied to the base station, and vice versa.

The present disclosure provides a method for power adjustment in a userequipment (UE), comprising:

receiving first information, the first information being used to triggera first operation;

receiving K piece(s) of target information; and

transmitting a first wireless signal;

wherein a transmission power value of the first wireless signal is afirst power value; the first power value is irrelevant to all piece(s)of target information received prior to triggering the first operation;the K piece(s) of target information is(are) received after triggeringthe first operation; the sum of K power offset value(s) is used todetermine the first power value; the K power offset value(s) arerespectively indicated by the K piece(s) of target information; thefirst information is used to determine P antenna port groups; the firstpower value is associated with a first antenna port group; the antennaport groups comprise a positive integer number of antenna ports; the Pis a positive integer; the K is a positive integer.

In the embodiment, the K power offset value(s) corresponds(correspond)to the K Transmission power value Control (TPC) indication(s) after thefirst operation is triggered. An accumulation reset corresponding to thefirst power value is triggered by reception of the first information.The first information corresponds to the P antenna port group(s), ratherthan the first antenna port group corresponding to the first wirelesssignal. The accumulation reset of the first power value is triggeredonly when the P antenna port group(s) is(are) reset. Therefore, thefrequent reset of the uplink transmitting power due to the change of thecorresponding antenna port group is avoided, and the complexity of theuplink power control of the UE is reduced.

In the embodiment, one of the advantages of the above method is that thelarge-scale fading corresponding to the P antenna port groups issimilar. The uplink power control of the UE is operated by referring tothe average pathloss value(s) (Pathloss) of the wireless signalstransmitted by the P antenna port groups, thereby simplifying the powercontrol complexity.

In the embodiment, another benefit of the above method is that themethod in the present disclosure avoids the occurrence of the followingproblems. Under large-scale MIMO, a scenario in which the UE frequentlyswitches the first antenna port group in the P antenna port group(s)exists. If the uplink transmitting power is determined only by the firstantenna port group corresponding to the first wireless signal, theuplink transmitting power will vary greatly and is unstable, which isdisadvantageous for receiving by the base station.

In one embodiment, the P is greater than 1.

In one embodiment, the P is 1.

In one embodiment, the given target information is the first targetinformation received by the UE after the triggering of the firstoperation. The given target information is one of the K piece(s) oftarget information that is first received by the UE.

In one embodiment, the phrase that the first power value is irrelevantto all piece(s) of target information received prior to triggering thefirst operation means: the UE receives K1 pieces of target informationin a given time window, and the time when the first operation istriggered corresponds to a first time. The given time window includesthe first time. Among the K1 pieces of target information, K2 piece(s)of target information is(are) before the first time, and K piece(s) oftarget information is(are) after the first time. The K1 is equal to thesum of the K2 and the K. The first power value is irrelevant to the K2piece(s) of target information.

In one embodiment, the first information is semi-persistentlyconfigured.

In one embodiment, the first information is dynamically configured.

In one embodiment, the first antenna port group is one of the P antennaport group(s).

In one embodiment, the antenna port groups include only one antennaport.

In one embodiment, the antenna port group includes a positive integernumber of the antenna port(s).

In one embodiment, the P is greater than 1. There are at least twoantenna port groups in the P antenna port groups, and the numbers of theantenna ports in the two antenna port groups are unequal.

In one embodiment, the first antenna port group is any one of the Pantenna port groups.

In one embodiment, that the first power value is associated with a firstantenna port group means that: measurements for all of the antenna portsin the first antenna port group are used to determine the first powervalue.

In one embodiment, that the first power value is associated with a firstantenna port group means that: measurements for a part of the antennaports in the first antenna port group are used to determine the firstpower value.

In one embodiment, the antenna port is formed by superposing multipleantennas through antenna virtualization. The mapping coefficients of theplurality of antennas to the antenna port constitute a beamformingvector.

In one sub-embodiment of this embodiment, the beamforming vectorscorresponding to any two different antenna ports cannot be assumed to bethe same.

In one sub-embodiment of this embodiment, the UE cannot perform jointchannel estimation using the reference signals transmitted by twodifferent antenna ports.

In one embodiment, the first operation is re-triggered after the Kpiece(s) of target information.

In one embodiment, the first operation is applied to the P antenna portgroup(s).

In one embodiment, a Reference Signal (RS) transmitted by the antennaport is a Channel State Information Reference Signal (CSI-RS).

In one embodiment, the first antenna port and the second antenna portbelong to any two of the antenna port groups respectively. The airinterface resources respectively occupied by the RS transmitted by thefirst antenna port and by the RS transmitted by the second antenna portare orthogonal. The air interface resource includes one or more of timedomain resource, frequency domain resource, and code domain resource.

In one sub-embodiment of this embodiment, the air interface resource isa time domain resource.

In one embodiment, the target information is a Transmitting PowerControl (TPC) field.

In one embodiment, the target information is indicated by DownlinkControl Information (DCI), and the DCI format corresponding to the DCIis one of the formats 0, 3, 3A, or 6-0A.

In one embodiment, the first information is a Radio Resource Control(RRC) layer signaling.

In one embodiment, the first power value and the sum of K poweroffset(s) is a linear relationship.

In one sub-embodiment of this embodiment, a linear coefficientcorresponding to the linear relationship is 1.

In one sub-embodiment of this embodiment, the unit of the power offsetis dB (decibel).

In one sub-embodiment of this embodiment, the power offset is equal toone of −4, −1, 0, 1, 3, and 4.

In one embodiment, the first information belongs to UplinkPowerControlIE.

In one embodiment of the method for power adjustment in a userequipment, the method further comprises:

receiving Q target wireless signals; and

determining Q reference power values;

wherein the Q target wireless signals are respectively transmitted by Qantenna port groups; the P antenna port group(s) is(are) a subset of theQ antenna port groups; measurements for the Q target wireless signalsare respectively used to determine the Q reference power values; thefirst antenna port group is one of the Q antenna port groups; the Q is apositive integer greater than 1; the Q is greater than or equal to theP.

In the embodiment, the UE is configured with Q antenna port groups. TheQ antenna port groups correspond to the Q target wireless signals. Theaccumulation reset of the first power value is triggered when the Pantenna port group(s) of the Q antenna port groups is(are) reconfigured.This embodiment reduces the number of triggers for the accumulationreset of the UE, thereby reducing the complexity of the power control.

In one embodiment, the P is smaller than the Q.

In one embodiment, the P is equal to the Q.

In one sub-embodiment of this embodiment, the P antenna port groups areequal to the Q antenna port groups.

In one embodiment, the target wireless signal includes a positiveinteger number of reference signal(s). The number of the referencesignals in the target wireless signal is equal to the number of theantenna ports in the corresponding antenna port group.

In one sub-embodiment of the embodiment, the reference signals in thetarget wireless signal and the antenna ports in the correspondingantenna port group are in one-to-one correspondence.

In one embodiment, the first antenna port group is one other than the Pantenna port group(s).

In the sub-embodiment of the embodiment, even if the antenna port groupdetermined by the first information is irrelevant to the first antennaport group, the first power value associated with the first antenna portgroup still needs to trigger an accumulation reset.

In one embodiment, the first antenna port group is one of the P antennaport group(s).

In the sub-embodiment of the embodiment, only when the antenna portgroup determined by the first information is irrelevant to the firstantenna port group, the first power value associated with the firstantenna port group needs to trigger an accumulation reset.

In one embodiment, the first information further includes an index ofthe P antenna port group(s) in the Q antenna port groups.

In one embodiment, the first power value is one of the Q reference powervalues.

In one embodiment, the Q reference power values are for the same timewindow.

In one embodiment, the Q reference power values are for different timewindows.

In one embodiment, the target wireless signal comprises a CSI-RS.

In one embodiment, the unit of the reference power value is one of dBm(millimeters), dB, or mW (milliwatts).

In one embodiment, the given reference power value is one of the Qreference power values. The given reference power value is associatedwith a given antenna port group. The given antenna port group isassociated with the given reference power value of the Q antenna portgroups.

In one sub-embodiment of this embodiment, whether the given referencepower value is equal to min{P_(CMAX,c)(i), P₁(i)} or the given referencepower value is equal to a difference between P_(CMAX,c)(i) and P₁(i).P₁(i) is determined by the following formula:

P ₁(i)+10 log₁₀(M _(PUSCH)(i))+P _(O_PUSCH,c)(j)+PL′+Δ _(TF,c)(i)+f_(c)(i)

wherein i represents a subframe number or a slot number; the value of jis related to the type of the wireless signal using the given referencepower value. P_(CMAX,c)(i) corresponds to the maximum transmitting powerof the wireless signal using the given reference power value.M_(PUSCH,c)(i) is related to the bandwidth occupied by the wirelesssignal using the given reference power value. P_(CMAX,c)(i) andM_(PUSCH,c)(i) are configured by a higher layer signaling.P_(O_PUSCH,c)(j) is configured by a higher layer signaling. f_(c)(i) isassociated with a higher layer signaling and indicated by TPC. PL′ isassociated with the pathloss values of the Q target wireless signals tothe UE.

In one additional embodiment of this sub-embodiment, the given referencepower value is equal to min {P_(CMAX,c)(i), P₁(i)}. The given referencepower value is the transmitting power of the corresponding wirelesssignal.

In one additional embodiment of this sub-embodiment, PP is determined bythe following formula:

${PL}^{\prime} = {\frac{\alpha_{c}(j)}{Q} \cdot {\sum\limits_{l = 1}^{Q}{{PL}(l)}}}$

PL(l) corresponds to the pathloss value of the l-th target wirelesssignal in the Q target wireless signals to the UE. The “l” is a positiveinteger not less than l and not greater than Q. When j is equal to 0 or1, α_(c)(i) is configured by the high-level signaling, or when j isequal to 2, α_(c)(i) is equal to 1. α_(c)(i) is irreverent to the l-thtarget wireless signal.

In one additional embodiment of this sub-embodiment, PL′ is determinedby the following formula:

${PL}^{\prime} = {\frac{1}{Q} \cdot {\sum\limits_{l = 1}^{Q}{{\alpha_{c,l}(j)}{{PL}(l)}}}}$

PL(l) corresponds to the pathloss value of the l-th target wirelesssignal in the Q target wireless signals to the UE. The “l” is a positiveinteger not less than 1 and not greater than Q. When j is equal to 0 or1, α_(c,l)(j) is configured by the high-level signaling, or when j isequal to 2, α_(c,l)(j) is equal to 1. α_(c,l)(j) is associated the 1-thtarget wireless signal.

In one auxiliary embodiment of this sub-embodiment, the wireless signalusing the given reference power value is an uplink data channel throughsemi-persistent grant, and the j is equal to 0; the wireless signalusing the given reference power value is an uplink data channel throughdynamic scheduled grant, and the j is equal to 0; the wireless signalusing the given reference power value is used for initial access, andthe j is equal to 2.

In one embodiment of the method for power adjustment in a userequipment, the method further comprises:

receiving K downlink signaling(s);

wherein the K downlink signaling(s) respectively comprises the Kpiece(s) of target information; a first signaling is the last receivedone among the K downlink signaling(s); the first signaling comprisesscheduling information of the first wireless signal; the schedulinginformation comprises at least one of occupied time domain resources,occupied frequency domain resources, Modulation and Coding Status (MCS),New Data Indicator (NDI), Redundancy Version (RV), or Hybrid AutomaticRepeat request (HARQ) process numbers.

In the embodiment, the downlink signaling is also used for uplinkscheduling while including the target information, thereby savingcontrol signaling overhead.

In one embodiment, the downlink signaling is a DCI.

In one sub-embodiment of the embodiment, the DCI corresponding to thedownlink signaling adopts Format 0, or the DCI corresponding to thedownlink signaling adopts Format 6-0A.

In one embodiment, the downlink signaling is a dynamic signaling.

In one embodiment, any two downlink signalings in the K downlinksignalings occupy different time domain resources.

In one sub-embodiment of this embodiment, the downlink signaling is aDCI for uplink grant (UL Grant).

In one embodiment, the downlink signaling is used to determine an indexof the first antenna port group in the Q antenna port groups.

In one sub-embodiment of the embodiment, the downlink signaling includesQ1 bit(s). The Q1 bits indicates(indicate) an index of the first antennaport group in the Q antenna port groups. The Q1 is a positive integer.

In one sub-embodiment of the embodiment, the downlink signaling isidentified by a first identity (ID). The index of the first antenna portgroup in the Q antenna port group is used to generate the first ID.

In one embodiment, the downlink signaling is identified by the first ID.

In one sub-embodiment of this embodiment, a Cyclic Redundancy Check(CRC) bit in the downlink signaling is scrambled by the first ID.

In one sub-embodiment of the embodiment, the first ID is a Radio NetworkTempory Identity (RNTI).

In one sub-embodiment of the embodiment, the first ID is used todetermine a time-frequency resource occupied by the downlink signaling.

In one embodiment of the method for power adjustment in a userequipment, the first wireless signal comprises a first difference value;the first difference value is a difference between a first limited powerand a first reference power value; the first reference power value islinearly related to the sum of the K power offset(s); the firstreference power value is linearly related to a reference pathloss value;the reference pathloss value is an average of P pathloss value(s), andthe P pathloss value(s) is(are) in one-to-one correspondence with the Pantenna port group(s), or the reference pathloss value is an average ofQ pathloss values, and the Q pathloss values are in one-to-onecorrespondence with the Q antenna port groups.

In the embodiment, the pathloss value used in the power controlcorresponding to the first wireless signal is an average value, ratherthan the pathloss value(s) corresponding to the wireless signaltransmitted by the first antenna port group corresponding to the firstwireless signal. This embodiment simplifies the complexity of uplinkpower control and avoids frequent changes in uplink transmitting power.

In one embodiment, the unit of the first difference value isdB(decibel).

In one embodiment, the first difference value is a Power Headroom (PH).

In one embodiment, the first difference value is PH(i), which isdetermined by the following formula:

PH(i)=P _(CMAX,c)(i)−10 log₁₀(M _(PUSCH,c)(i))+P_(O_PUSCH,c)(j)+Δ_(TF,c)(i)+f _(c)(i)

wherein the i represents a subframe or a slot number, and the value of jis associated with the type of the first wireless signal. P_(CMAX,c)(i)corresponds to the first limited power. M_(PUSCH,c)(i) is associatedwith the bandwidth occupied by the first wireless signal, and configuredby a high layer signaling. P_(O_PUSCH,c)(j) is configured by a highlayer signaling. Δ_(TF,c)(i) is associated with a high layer signaling.f_(c)(i) is associated with a dynamic signaling, and is indicated byTPC. PL′ is associated with the reference pathloss value.

In one sub-embodiment of this embodiment, PE is determined by thefollowing formula:

PL′=α _(c)(j)PL _(A)

wherein when j is equal to 0 or 1, α_(c)(i) is configured by a highlayer signaling; or when j is equal to 2, α_(c)(i) is equal to 1.α_(c)(i) is irrelevant to the first wireless signal. PL_(A) correspondsto the average of the P pathloss value(s), or PL_(A) corresponds to theaverage of the Q path loses.

In one embodiment, the first wireless signal further includes upperlayer data.

In one embodiment of the method for power adjustment in a userequipment, the first information comprises P sub-information block(s);the P sub-information block(s) is(are) in one-to-one correspondence withthe P antenna port group(s); the sub-information block(s)indicates(indicate) at least one of an index of the correspondingantenna port group or a parameter set of the corresponding antenna portgroup; the parameter set is used to determine the correspondingreference power value.

In one embodiment, the P sub-information block(s) respectivelycomprises(comprise)compensation factor(s) of the P pathloss value(s).The compensation factor(s) of the P pathloss value(s) is(are) inone-to-one correspondence with the wireless signal(s) transmitted on theP antenna port group(s).

In one embodiment, the parameter set includes a pathloss valuecompensation factor. A linear coefficient between the correspondingreference power value and the pathloss value is the compensation factor.

In one embodiment, the first information includes only one pathlossvalue compensation factor. The pathloss value compensation factor is fora wireless signal transmitted on any one of the P antenna port group(s).A linear coefficient between the corresponding reference power value andthe reference pathloss value is the compensation factor. The referencepathloss value is an average of P pathloss value(s) corresponding to theP antenna port group(s).

In one embodiment, the P sub-information block(s) respectivelycomprises(comprise) P type-one desired power(s). The P type-one desiredpower(s) is(are) in one-to-one correspondence with the P antenna portgroup(s).

In one sub-embodiment of this embodiment, the type-one desired power isexclusive to the antenna port group; or the type-one desired power isbeam-specific; or the type-one desired power is beam group-specific.

In one sub-embodiment of this embodiment, the linear coefficient betweenthe corresponding reference power value and the type-one desired poweris 1.

In one embodiment, the parameter set includes one type-one desiredpower. The corresponding reference power value is linearly related tothe type-one desired power.

In one sub-embodiment of this embodiment, the linear coefficient betweenthe corresponding reference power value and the type-one desired poweris 1.

In one embodiment, the first information block includes only onetype-two desired power. The type-two desired power is irrelevant to anyone of the P antenna port group(s).

In one sub-embodiment of this embodiment, the type-two desired power isUE-specific.

In one sub-embodiment of this embodiment, the type-two desired power iscell-specific.

In one sub-embodiment of this embodiment, the linear coefficient betweenthe corresponding reference power value and the type-two desired poweris 1.

In one embodiment of the method for power adjustment in a userequipment, the method further comprises:

receiving second information;

wherein the second information is used to determine a first desiredpower; the second information is received prior to triggering the firstoperation; the first desired power is used to determine the first powervalue.

In the embodiment, the first desired power is non-beam-specific ornon-antenna-port-group-specific or non-beam-group-specific. And thedifference from the existing system is that the second information isnot used for the accumulation reset trigger of the first power value.

In one embodiment, the second information is a p0-UE-PUSCH field.

In one embodiment, the first power value is linearly related to thefirst desired power, and the corresponding linear coefficient is 1.

In one embodiment, the second information belongs to the firstinformation, and the first desired power corresponds to the type-twodesired power.

In one sub-embodiment of this embodiment, the first desired power isirrelevant to any one of the P antenna port group(s).

In one sub-embodiment of this embodiment, the first desired power isUE-specific.

In one sub-embodiment of this embodiment, the first desired power iscell-specific.

The present disclosure provides a method for power adjustment in a basestation, comprising:

transmitting first information, the first information being used totrigger a first operation;

transmitting K piece(s) of target information; and

receiving a first wireless signal;

wherein a transmission power value of the first wireless signal is afirst power value; the first power value is irrelevant to all piece(s)of target information received prior to triggering the first operation;the K piece(s) of target information is(are) received after triggeringthe first operation; the sum of K power offset value(s) is used todetermine the first power value; the K power offset value(s) is(are)respectively indicated by the K piece(s) of target information; thefirst information is used to determine P antenna port group(s); thefirst power value is associated with a first antenna port group; theantenna port group(s) comprises(comprise) a positive integer number ofantenna port(s); the P is a positive integer; the K is a positiveinteger.

In one embodiment of the method for power adjustment in a base station,the method further comprises:

transmitting Q target wireless signals; and

determining Q reference power values;

wherein the Q target wireless signals are respectively transmitted by Qantenna port groups; the P antenna port group(s) is(are) a subset of theQ antenna port groups; measurements for the Q target wireless signalsare respectively used to determine the Q reference power values; thefirst antenna port group is one of the Q antenna port groups; the Q is apositive integer greater than 1; the Q is greater than or equal to theP.

In one embodiment, the Q reference power values are respectively used todetermine Q receiving powers. The Q receiving powers are respectively inone-to-one correspondence with Q transmitting antenna port groups. The Qtransmitting antenna port groups are in one-to-one correspondence withthe Q antenna port groups.

In one sub-embodiment of this embodiment, there is a given referencepower value among the Q reference power values, and the given referencepower value is used to determine the first power value.

In one embodiment of the method for power adjustment in a base station,the method further comprises:

transmitting K downlink signaling(s);

wherein the K downlink signaling(s) respectively comprises the Kpiece(s) of target information; a first signaling is the last receivedone among the K downlink signaling(s); the first signaling comprisesscheduling information of the first wireless signal; the schedulinginformation comprises at least one of occupied time domain resources,occupied frequency domain resources, MCS, HARQ process numbers, RV, orNDI.

In one embodiment of the method for power adjustment in a base station,the first wireless signal comprises a first difference value; the firstdifference value is a difference between a first limited power and afirst reference power value; the first reference power value is linearlyrelated to the sum of the K power offset(s); the first reference powervalue is linearly related to a reference pathloss value; the referencepathloss value is an average of P pathloss value(s), and the P pathlossvalue(s) is(are) in one-to-one correspondence with the P antenna portgroup(s), or the reference pathloss value is an average of Q pathlossvalues, and the Q pathloss values are in one-to-one correspondence withthe Q antenna port groups.

In one embodiment of the method for power adjustment in a base station,the first information comprises P sub-information block(s); the Psub-information block(s) is(are) in one-to-one correspondence with the Pantenna port group(s); the sub-information block(s) indicates(indicate)at least one of an index of the corresponding antenna port group or aparameter set of the corresponding antenna port group; the parameter setis used to determine the corresponding reference power value.

In one embodiment of the method for power adjustment in a base station,the method further comprises:

transmitting second information;

wherein the second information is used to determine a first desiredpower; the second information is received prior to triggering the firstoperation; the first desired power is used to determine the first powervalue.

In one embodiment of the method for power adjustment in a base station,the second information includes the first information; or the thirdinformation includes the first information.

The present disclosure provides a user equipment for power adjustment,comprising:

a first receiver, receiving first information, the first informationbeing used to trigger a first operation;

a second receiver, receiving K piece(s) of target information; and

a first transmitter, transmitting a first wireless signal;

wherein a transmission power value of the first wireless signal is afirst power value; the first power value is irrelevant to all piece(s)of target information received prior to triggering the first operation;the K piece(s) of target information is(are) received after triggeringthe first operation; the sum of K power offset value(s) is used todetermine the first power value; the K power offset value(s) arerespectively indicated by the K piece(s) of target information; thefirst information is used to determine P antenna port group(s); thefirst power value is associated with a first antenna port group; theantenna port group(s) comprises(comprise) a positive integer number ofantenna port(s); the P is a positive integer; the K is a positiveinteger.

In one embodiment, the first receiver further receives the Q targetwireless signals for determining Q reference power values. The Q targetwireless signals are respectively transmitted by Q antenna port groups,and the P antenna port group(s) is(are) a subset of the Q antenna portgroups. Measurements for the Q target wireless signals are used todetermine the Q reference power values respectively. The first antennaport group is one of the Q antenna port groups. The Q is a positiveinteger greater than 1, and the Q is greater than or equal to the P.

In one embodiment, the first receiver further receives secondinformation, wherein the second information is used to determine a firstdesired power; the second information is received prior to triggeringthe first operation; the first desired power is used to determine thefirst power value.

In one embodiment, the second receiver further receives K downlinksignaling(s); wherein the K downlink signaling(s) respectivelycomprises(comprise) the K piece(s) of target information; a firstsignaling is the last received one among the K downlink signaling(s);the first signaling comprises scheduling information of the firstwireless signal; the scheduling information comprises at least one ofoccupied time domain resources, occupied frequency domain resources,MCS, HARQ process numbers, RV, or NDI.

In one embodiment of a user equipment for power adjustment, the firstwireless signal comprises a first difference value; the first differencevalue is a difference between a first limited power and a firstreference power value; the first reference power value is linearlyrelated to the sum of the K power offset(s); the first reference powervalue is linearly related to a reference pathloss value; the referencepathloss value is an average of P pathloss value(s), and the P pathlossvalue(s) is(are) in one-to-one correspondence with the P antenna portgroup(s), or the reference pathloss value is an average of Q pathlossvalues, and the Q pathloss values are in one-to-one correspondence withthe Q antenna port groups.

In one embodiment of a user equipment for power adjustment, the firstinformation comprises P sub-information block(s); the P sub-informationblock(s) is(are) in one-to-one correspondence with the P antenna portgroup(s); the sub-information block(s) indicates(indicate) at least oneof an index of the corresponding antenna port group or a parameter setof the corresponding antenna port group; the parameter set is used todetermine the corresponding reference power value.

The present disclosure provides a base station for power adjustment,comprising:

a second transmitter, transmitting first information, the firstinformation being used to trigger a first operation;

a third transmitter, transmitting K piece(s) of target information; and

a third receiver, receiving a first wireless signal;

wherein a transmission power value of the first wireless signal is afirst power value; the first power value is irrelevant to all piece(s)of target information received prior to triggering the first operation;the K piece(s) of target information is(are) received after triggeringthe first operation; the sum of K power offset value(s) is used todetermine the first power value; the K power offset value(s) arerespectively indicated by the K piece(s) of target information; thefirst information is used to determine P antenna port group(s); thefirst power value is associated with a first antenna port group; theantenna port group(s) comprises(comprise) a positive integer number ofantenna port(s); the P is a positive integer; the K is a positiveinteger.

In one embodiment, the second transmitter further transmits the Q targetwireless signals for determining Q reference power value. The Q targetwireless signals are respectively transmitted by Q antenna port groups,and the P antenna port group(s) is(are) a subset of the Q antenna portgroups. Measurements for the Q target wireless signals are used todetermine the Q reference power values respectively. The first antennaport group is one of the Q antenna port groups. The Q is a positiveinteger greater than 1, and the Q is greater than or equal to the P.

In one embodiment, the second transmitter further transmits secondinformation; wherein the second information is used to determine a firstdesired power; the second information is received prior to triggeringthe first operation; the first desired power is used to determine thefirst power value.

In one embodiment, the third transmitter transmits K downlinksignaling(s); wherein the K downlink signaling(s) respectivelycomprises(comprise) the K piece(s) of target information; a firstsignaling is the last received one among the K downlink signaling(s);the first signaling comprises scheduling information of the firstwireless signal; the scheduling information comprises at least one ofoccupied time domain resources, occupied frequency domain resources,MCS, HARQ process numbers, RV, or NDI.

In one embodiment of a base station for power adjustment, the firstwireless signal comprises a first difference value; the first differencevalue is a difference between a first limited power and a firstreference power value; the first reference power value is linearlyrelated to the sum of the K power offset(s); the first reference powervalue is linearly related to a reference pathloss value; the referencepathloss value is an average of P pathloss value(s), and the P pathlossvalue(s) is(are) in one-to-one correspondence with the P antenna portgroup(s), or the reference pathloss value is an average of Q pathlossvalues, and the Q pathloss values are in one-to-one correspondence withthe Q antenna port groups.

In one embodiment of a base station for power adjustment, the firstinformation comprises P sub-information block(s); the P sub-informationblock(s) is(are) in one-to-one correspondence with the P antenna portgroup(s); the sub-information block(s) indicates(indicate) at least oneof an index of the corresponding antenna port group or a parameter setof the corresponding antenna port group; the parameter set is used todetermine the corresponding reference power value.

Compared with the prior art, the present disclosure has the followingtechnical advantages:

The K power offset value(s) corresponds(correspond) to the Ktransmission power value Control (TPC) indication(s) after the firstoperation is triggered. An accumulation reset corresponding to the firstpower value is triggered by reception of the first information. Thefirst information corresponds to the P antenna port group(s) rather thanthe first antenna port group corresponding to the first wireless signal.The accumulation reset of the first power value is triggered only whenthe P antenna port groups are reset. The frequent reset of the uplinktransmitting power due to the change of the corresponding antenna portgroup is avoided, and the complexity of the uplink power control of theUE is reduced.

The large-scale fading corresponding to the P antenna port group(s) issimilar. The uplink power control of the UE is operated by referring tothe average pathloss value 9 (Pathloss) of the wireless signalstransmitted by the P antenna port group(s), thereby simplifying thepower control complexity.

Under large-scale MIMO, a scenario in which the UE frequently switchesthe first antenna port group in the P antenna port group(s) exists. Ifthe uplink transmitting power is determined only by the first antennaport group corresponding to the first wireless signal, the uplinktransmitting power will vary greatly and is unstable, which isdisadvantageous for receiving by the base station. The method in thepresent disclosure avoids the occurrence of the above problem.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects, and advantages of the present disclosure willbecome more apparent from the detailed description of the accompanyingdrawings.

FIG. 1 shows a flow chart showing a first information transmission inaccordance with an embodiment of the present disclosure.

FIG. 2 shows time domain diagram for triggering a first operation inaccordance with an embodiment of the present disclosure.

FIG. 3 shows a structural block diagram of a processing device in a UEaccording to an embodiment of the present disclosure.

FIG. 4 shows a structural block diagram of a processing device in a basestation according to an embodiment of the present disclosure.

FIG. 5 shows a schematic diagram of a reference signal (RS) transmittedby an antenna port in a time-frequency resource block according to anembodiment of the present disclosure.

FIG. 6 shows a schematic diagram of a network architecture in accordancewith one embodiment of the present disclosure.

FIG. 7 shows a schematic diagram of a wireless protocol architecture ofa user plane and a control plane according to an embodiment of thepresent disclosure.

FIG. 8 shows a schematic diagram of a base station device and a userequipment according to an embodiment of the present disclosure.

DESCRIPTION OF THE EMBODIMENTS

The embodiments of the present disclosure will be further described indetail below with reference to the accompanying drawings, and it shouldbe noted that the features in the embodiments and the embodiments of thepresent disclosure may be combined with each other without conflict.

Embodiment 1

Embodiment 1 Illustrates a flow chart showing a first informationtransmission in accordance with an embodiment of the present disclosure,as shown in FIG. 1. In FIG. 1, the base station N1 is a maintenance basestation for the serving cell of the UE U2. The steps identified by blockF0, block F1, block F2 and block F3 are optional, respectively.

For the base station N1, Q target wireless signals are transmitted instep S10; Q reference power values are determined in step S11; thesecond information is transmitted in step S12; the first information istransmitted in step S13, and the first is used to trigger the firstoperation; K downlink signalings are transmitted in step S14; K piece(s)of target information is(are) transmitted in step S15; the firstwireless signal is received in step S16.

For the UE U2, the Q target wireless signals are received in step S20;the Q reference power values are determined in step S21; the secondinformation is received in step S22; the first information is receivedin step S23, and the first information is used to trigger the firstoperation; K downlink signaling(s) is(are) received in step S24; Kpiece(s) of target information is(are) received in step S25; the firstwireless signal is transmitted in step S26.

In Embodiment 1, a transmission power value of the first wireless signalis a first power value. The first power value is irrelevant to allpiece(s) of target information received prior to triggering the firstoperation. The K piece(s) of target information is(are) received aftertriggering the first operation. The sum of K power offset value(s) isused to determine the first power value. The K power offset value(s)is(are) respectively indicated by the K piece(s) of target information.The first information is used to determine P antenna port group(s). Thefirst power value is associated with a first antenna port group. Theantenna port groups comprise a positive integer number of antennaport(s). The P is a positive integer. The K is a positive integer. The Qtarget wireless signals are respectively transmitted by Q antenna portgroups. The P antenna port group(s) is(are) a subset of the Q antennaport groups. Measurements for the Q target wireless signals arerespectively used to determine the Q reference power values. The firstantenna port group is one of the Q antenna port groups. The Q is apositive integer greater than 1. The Q is greater than or equal to theP. The K downlink signaling(s) respectively comprises the K piece(s) oftarget information. A first signaling is the last received one among theK downlink signaling(s). The first signaling comprises schedulinginformation of the first wireless signal. The scheduling informationcomprises at least one of occupied time domain resources, occupiedfrequency domain resources, MCS, HARQ process numbers, RV, or NDI. Thesecond information is used to determine a first desired power by the UEU2. The second information is received prior to triggering the firstoperation. The first desired power is used to determine the first powervalue.

In one sub-embodiment, the second information is an RRC signaling.

In one sub-embodiment, the second information is UE-specific.

In one sub-embodiment, the first information is an RRC signaling.

In one sub-embodiment, the first information is UE-specific.

In one sub-embodiment, the transport channel corresponding to the firstwireless signal is an Uplink Shared Channel (UL-SCH).

In one sub-embodiment, the physical layer channel corresponding to thefirst wireless signal is a Physical Uplink Shared Channel (PUSCH), or aShort Latency PUSCH (sPUSCH).

Embodiment 2

Embodiment 2 Illustrates a time domain diagram for triggering a firstoperation, as shown in FIG. 2. In FIG. 2, the square marked by the thickline frame is one of the target information of the K1 targetinformation, the square filled with slashes is one of the K2 piece(s) oftarget information, and the square filled with backslashes is one of theK piece(s) of target information. The K1 pieces of target information iscomposed of the K2 piece(s) of target information and the K piece(s) oftarget information.

In Embodiment 2, in a given time window, the UE receives K1 pieces oftarget information in total, and the UE receives the first informationat a first time. Among the K1 pieces of target information, K piece(s)of target information is(are) after the first time in the time domain.Among the K1 target information, K2piece(s) of target information isbefore the first time in the time domain. The K1 is equal to the sum ofthe K and the K2. The first wireless signal of this disclosure istransmitted after the K piece(s) of target information.

In one sub-embodiment, the first time is considered by the UE to be thetime when the first operation is triggered.

In one subsidiary embodiment of this sub-embodiment, the first powervalue of the present disclosure is irrelevant to the K2piece(s) oftarget information.

In one subsidiary embodiment of this sub-embodiment, the first powervalue of the present disclosure is associated with the K piece(s) oftarget information.

In one subsidiary embodiment of the sub-embodiment, the first wirelesssignal of the present disclosure is the first uplink signal transmittedby the UE after the K piece(s) of target information.

In one example of this subsidiary embodiment, the uplink signal is usedfor random access, or the uplink signal is used for uplink datatransmission.

Embodiment 3

Embodiment 3 Illustrates a structural block diagram of a processingdevice in a UE, as shown in FIG. 3. In FIG. 3, a processing device 100in the UE comprises a first receiver 101, a second receiver 102 and afirst transmitter 103.

The first receiver 101 is configured to receive first information; thefirst information being used to trigger a first operation.

The second receiver 102 is configured to receive K piece(s) of targetinformation.

The first transmitter 103 is configured to transmit a first wirelesssignal.

In Embodiment 3, a transmission power value of the first wireless signalis a first power value. The first power value is irrelevant to allpiece(s) of target information received prior to triggering the firstoperation. The K piece(s) of target information is(are) received aftertriggering the first operation. The sum of K power offset value(s) isused to determine the first power value. The K power offset value(s)is(are) respectively indicated by the K piece(s) of target information.The first information is used to determine P antenna port group(s). Thefirst power value is associated with a first antenna port group. Theantenna port groups comprise a positive integer number of antennaport(s). The P is a positive integer. The K is a positive integer.

In one sub-embodiment, the first receiver 101 is further configured toreceive the Q target wireless signals for determining Q reference powervalues. The Q target wireless signals are respectively transmitted by Qantenna port groups, and the P antenna port group(s) is(are) a subset ofthe Q antenna port groups. Measurements for the Q target wirelesssignals are used to determine the Q reference power values respectively.The first antenna port group is one of the Q antenna port groups. The Qis a positive integer greater than 1, and the Q is greater than or equalto the P.

In one sub-embodiment, the first receiver 101 is further configured toreceive second information. The second information is used to determinea first desired power. The second information is received prior totriggering the first operation. The first desired power is used todetermine the first power value.

In one sub-embodiment, the second receiver 102 is further configured toreceive K downlink signaling(s). The K downlink signaling(s)respectively comprises(comprise) the K piece(s) of target information. Afirst signaling is the last received one among the K downlinksignaling(s). The first signaling comprises scheduling information ofthe first wireless signal. The scheduling information comprises at leastone of occupied time domain resources, occupied frequency domainresources, MCS, HARQ process numbers, RV, or NDI.

Embodiment 4

Embodiment 4 Illustrates a structural block diagram of a processingdevice in a base station, as shown in FIG. 4. In FIG. 4, a processingdevice 400 in the base station comprises a second transmitter 401, athird transmitter 402 and a third receiver 403.

The second transmitter 401 is configured to transmit first information,the first information being used to trigger a first operation.

The third transmitter 402 is configured to transmit K piece(s) of targetinformation.

The third receiver 403 is configured to receive a first wireless signal.

In Embodiment 4, a transmission power value of the first wireless signalis a first power value. The first power value is irrelevant to allpiece(s) of target information received prior to triggering the firstoperation. The K piece(s) of target information is(are) received aftertriggering the first operation. The sum of K power offset value(s) isused to determine the first power value. The K power offset value(s)is(are) respectively indicated by the K piece(s) of target information.The first information is used to determine P antenna port group(s). Thefirst power value is associated with a first antenna port group. Theantenna port group(s) comprises(comprise) a positive integer number ofantenna port(s). The P is a positive integer. The K is a positiveinteger.

In one sub-embodiment, the second transmitter 401 is further configuredto transmit the Q target wireless signals for determining Q referencepower values. The Q target wireless signals are respectively transmittedby Q antenna port groups, and the P antenna port group(s) is(are) asubset of the Q antenna port groups. Measurements for the Q targetwireless signals are used to determine the Q reference power valuesrespectively. The first antenna port group is one of the Q antenna portgroups. The Q is a positive integer greater than 1, and the Q is greaterthan or equal to the P.

In one sub-embodiment, the second transmitter 401 is further configuredto transmit second information. The second information is used todetermine a first desired power. The second information is receivedprior to triggering the first operation. The first desired power is usedto determine the first power value.

In one sub-embodiment, the third transmitter 402 is further configuredto transmit K downlink signaling(s). The K downlink signaling(s)respectively comprises(comprise) the K piece(s) of target information. Afirst signaling is the last received one among the K downlinksignaling(s). The first signaling comprises scheduling information ofthe first wireless signal. The scheduling information comprises at leastone of occupied time domain resources, occupied frequency domainresources, MCS, HARQ process numbers, RV, or NDI.

Embodiment 5

Embodiment 5 Illustrates a schematic diagram of a reference signal (RS)transmitted by an antenna port in a time-frequency resource block. InFIG. 5, the box marked by thick line frame is a time-frequency resourceblock, and the small square filled with slashes is the RE occupied bythe RS transmitted by the first antenna port in one time-frequencyresource block, and the small square filled with dots is the RE occupiedby the RS transmitted by the second antenna port in a time-frequencyresource block. The first antenna port and the second antenna portrespectively belong to different antenna port groups in the presentdisclosure.

In one sub-embodiment 1 of Embodiment 5, the time-frequency resourceblock includes 12 subcarriers in the frequency domain.

In one sub-embodiment 2 of the Embodiment 5, the time-frequency resourceblock includes fourteen Orthogonal Frequency Division Multiplexing(OFDM) symbols in the time domain.

In one sub-embodiment 3 of Embodiment 5, the pattern of the RStransmitted by the first antenna port in the time-frequency resourceblock and the pattern of the RS transmitted by the second antenna portin the time-frequency resource block are the same.

In one sub-embodiment 4 of Embodiment 5, the time-frequency resourceblock is a Physical Resource Block (PRB), and a pattern of the RStransmitted by the first antenna port in the time-frequency resourceblock is the pattern of the CSI-RS in the PRB, and a pattern of the RStransmitted by the second antenna port in the time-frequency resourceblock is a pattern of the CSI-RS in the PRB.

In one sub-embodiment 5 of Embodiment 5, the antenna port groups of thepresent disclosure include only one antenna port.

Embodiment 6

Embodiment 6 Illustrates a schematic diagram of a network architecture,as shown in FIG. 6.

Embodiment 6 Illustrates a schematic diagram of a network architectureaccording to the present disclosure, as shown in FIG. 6. FIG. 6illustrates a system network structure 200 of New Radio (NR), long-termevolution (LTE) and long-term evolution advanced (LTE-A). The networkarchitecture 200 may be referred to one evolve packet system (EPS) 200or some other suitable terminology. The EPS 200 may include one or moreUEs 201, an NG-RAN 202, an Evolved Packet Core (EPC)/5G-CoreNetwork(5G-CN) 210, a home subscriber server (HSS) 220 and an internetservice 230. The EPS may be interconnected with other access networks,but for the sake of simplicity, these entities/interfaces are not shown.As shown in the figure, the EPS provides packet switching services.Those skilled in the art would readily appreciate that the variousconcepts presented throughout this disclosure can be extended tonetworks or other cellular networks that provide circuit switchingservices. The NG-RAN comprises an NR Node B (gNB) 203 and other gNBs204. The gNB 203 provides user and control plane protocol terminationsfor the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xninterface (e.g., a backhaul). The gNB 203 may also be referred to as abase station, a base transceiver station, a radio base station, a radiotransceiver, a transceiver function, a basic service set (BSS), anextended service set (ESS), a transmission and reception point (TRP), orsome other suitable terminology. The gNB 203 provides the UE 201 with anaccess point to the EPC/5G-CN 210. In the embodiment, the UE 201comprises cellular telephones, smart phones, Session Initiation Protocol(SIP) phones, laptop computers, personal digital assistants (PDAs),satellite radios, non-terrestrial base station communications, satellitemobile communications, global positioning systems, multimedia devices,video devices, digital audio player (e.g. MP3 players), cameras, gameconsoles, drones, aircrafts, narrowband physical network devices,machine type communication devices, land vehicles, cars, wearabledevices, or any other similar to functional devices. A person skilled inthe art may also refer to UE 201 as a mobile station, a subscriberstation, a mobile unit, a subscriber unit, a radio unit, a remote unit,a mobile device, a radio device, a radio communication device, a remotedevice, a mobile subscriber station, an access terminal, a mobileterminal, a radio terminal, remote terminal, handset, user agent, mobileclient, client or some other suitable term. The gNB 203 is connected tothe EPC/5G-CN 210 through an SING interface. EPC/5G-CN 210 comprises anMME/AMF/UPF 211, other MMEs/AMFs/UPFs 214, a Service Gateway (S-GW) 212and a Packet Date Network Gateway (P-GW) 213. The MME/AMF/UPF 211 is acontrol node that handles a signaling between the UE 201 and theEPC/5G-CN 210. In general, the MME/AMF/UPF 211 provides bearer andconnection management. All User Internet Protocol (IP) packets aretransmitted through the S-GW 212, and the S-GW 212 itself is connectedto the P-GW 213. The P-GW 213 provides UE IP address allocation as wellas other functions. The P-GW 213 is connected to the internet service230. The internet service 230 includes an operator-compatible internetprotocol service, and may specifically include the Internet, anintranet, an IP Multimedia Subsystem (IMS), and a PS streaming service(PSS).

In one sub-embodiment, the UE 201 corresponds to the user equipment inthis disclosure.

In one sub-embodiment, the gNB 203 corresponds to the base station inthe present disclosure.

In one sub-embodiment, the UE 201 supports massive multiple input andmultiple output (Massive MIMO).

In one sub-embodiment, the g NB 20 supports massive multiple input andmultiple output (Massive MIMO).

Embodiment 7

Embodiment 7 illustrates a schematic diagram of a wireless protocolarchitecture of a user plane and a control plane according to anembodiment of the present disclosure, as shown in FIG. 7.

FIG. 7 is a schematic diagram illustrating an embodiment of a radioprotocol architecture for a user plane and a control plane, and FIG. 7illustrates a radio protocol architecture for the UE and the basestation equipment (gNB or eNB) in three layers: layer 1, layer 2 andlayer 3. Layer 1 (L1 layer) is the lowest layer and implements variousphysical layer (PHY) signal processing functions. The L1 layer will bereferred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301and is responsible for the link between the UE and the gNB through PHY301. In the user plane, L2 layer 305 comprises a media access control(MAC) sub-layer 302, a radio link control (RLC) sub-layer 303 and apacket data convergence protocol (PDCP) sub-layer 304, and thesesub-layers terminate at the gNB on the network side. Although notillustrated, the UE may have several upper layers above the L2 layer305, including a network layer (e.g. an IP layer) terminated at the P-GWon the network side and an application layer(e.g. a remote UE, a server,etc.) terminated at the other side of the connection. The PDCP sub-layer304 provides multiplexing between different radio bearers and logicalchannels. The PDCP sublayer 304 also provides header compression forupper layer packets to reduce radio transmission overhead, and providessecurity by encrypting packets, and provides support for UE handoversbetween gNBs. The RLC sublayer 303 provides segmentation and reassemblyof upper layer packets, retransmission of lost packets and thereordering of packets to compensate for the disordered receptionresulted from the hybrid automatic repeat request (HARQ). The MACsublayer 302 provides multiplexing between the logical and transportchannels. The MAC sublayer 302 is also responsible for allocatingvarious radio resources (e.g. resource blocks) in one cell between UEs.The MAC sublayer 302 is also responsible for HARQ operations. In thecontrol plane, the radio protocol architecture for the UE and gNB issubstantially the same as the radio protocol architecture in the userplane for the physical layer 301 and the L2 layer 305, but there is noheader compression function for the control plane. The control planealso comprises a Radio Resource Control (RRC) sublayer 306 on Layer 3(L3 layer). The RRC sublayer 306 is responsible for obtaining radioresources (i.e. radio bearers) and configuring the lower layer using anRRC signaling between the gNB and the UE.

In one sub-embodiment, the wireless protocol architecture of FIG. 1 isapplicable to the user equipment in this disclosure.

In one sub-embodiment, the wireless protocol architecture of FIG. 7 isapplicable to the base station in this disclosure.

In one sub-embodiment, the K piece(s) of target information in thepresent disclosure is(are) generated by the PHY 301.

In one sub-embodiment, the K downlink signaling(s) in the presentdisclosure is(are) generated by the PHY 301.

In one sub-embodiment, the Q target wireless signals in the presentdisclosure are generated by the PHY 301.

In one sub-embodiment, the first information in the present disclosureis generated in the RRC sublayer 306.

In one sub-embodiment, the first wireless signal in the presentdisclosure is generated in the RRC sublayer 306.

In one sub-embodiment, the first wireless signal in the presentdisclosure is generated on the user plane.

In one sub-embodiment, the first wireless signal in the presentdisclosure is generated on the control plane.

Embodiment 8

Embodiment 8 shows a schematic diagram of a base station device and auser equipment according to the present disclosure, as shown in FIG. 8.FIG. 8 is a block diagram of a gNB 410 in communication with a UE 450 inan access network.

The user equipment (UE 450) comprises a controller/processor 490, amemory 480, a receiving processor 452, a transmitter/receiver 456, atransmitting processor 455 and a datasource 467. Thetransmitter/receiver 456 includes an antenna 460. The data source 467provides an upper layer data packet to the controller/processor 490. Thecontroller/processor 490 provides header compression, encryption, packetsegmentation and reordering, and multiplexing between logical andtransport channels to implement L2 layer protocols for the user planeand the control plane. The upper layer packet may include data orcontrol information, such as Uplink Shared Channel (UL-SCH). Thetransmitting processor 455 implements various signal transmissionprocessing functions for the L1 layer (i.e., the physical layer),including encoding, interleaving, scrambling, modulation, powercontrol/allocation, precoding, generation of physical layer controlsignaling, etc. The receiving processor 452 implements various signaltransmission processing functions for the L1 layer (i.e., the physicallayer), including decoding, deinterlacing, scrambling, modulation,de-precoding, extraction of physical layer control signaling, etc. Thetransmitter 456 is configured to convert the baseband signal provided bythe transmitting processor 455 into a radio frequency signal and totransmit the radio frequency signal via the antenna 460. The receiver456 is configured to convert the radio frequency signal received via theantenna 460 into a baseband signal and to provide the baseband signal tothe receiving processor 452.

The base station (410) may include a controller/processor 440, a memory430, a receiving processor 412, a transmitter/receiver 416, and atransmitting processor 415. The transmitter/receiver includes an antenna420. The upper layer packet is provided to the controller/processor 440.The controller/processor 440 provides header compression, encryption anddecryption, packet segmentation and reordering, and multiplexing betweenlogical and transport channels to implement L2 layer protocols for theuser plane and the control plane. The upper layer packet may includedata or control information, such as a Downlink Shared Channel (DL-SCH)or an UpLink Shared Channel (UL-SCH). The transmitting processor 415implements various signal transmission processing functions for the L1layer (i.e., the physical layer), including encoding, interleaving,scrambling, modulation, power control/allocation, precoding, generationof physical layer control signaling, including Physical BroadcastingChannel (PBCH), Physical Downlink Control Channel (PDCCH), PhysicalDownlink Shared Channel (PDSCH)), etc. The receiving processor 412implements various signal transmission processing functions for the L1layer (i.e., the physical layer), including decoding, deinterlacing,scrambling, modulation, de-precoding, extraction of physical layercontrol signaling, etc. The transmitter 416 is configured to convert thebaseband signal provided by the transmitting processor 415 into a radiofrequency signal and to transmit the radio frequency signal via theantenna 420. The receiver 416 is configured to convert the radiofrequency signal received the antenna 420 into a baseband signal and toprovide the baseband signal to the processor 412.

In Downlink (DL), the upper layer packet DL-SCH, including the firstinformation in the present disclosure, is provided to thecontroller/processor 440. The controller/processor 440 implements thefunctionality of the L2 layer. In DL, the controller/processor 440provides header compression, encryption, packet segmentation andreordering, and multiplexing between logical and transport channels, andradio resource allocation to UE 450 based on various priorities. Thecontroller/processor 440 is also responsible for HARQ operations,retransmission of lost packets, and a signaling to the UE 450. Thetransmitting processor 415 implements various signal transmissionprocessing functions for the L1 layer (i.e., the physical layer),including generating the L reference signal groups of the presentdisclosure. The signal processing functions include encoding andinterleaving to facilitate forward error correction (FEC) at the UE 450and modulating the baseband signal based on various modulation schemes(e.g., binary phase shift keying (BPSK), quadrature phase shift keying(QPSK)), dividing the modulation symbols into parallel streams andmapping each stream to a corresponding multi-carrier subcarrier and/ormulti-carrier symbol, and then transmitting the mapped symbol streamsfrom the transmitting processor 415 via the transmitter 416 to theantenna 420 in the form of a radio frequency signal. The firstinformation, the K piece(s) of target information, and the Q targetwireless signal groups in the present disclosure are transmitted by thetransmitting processor 415 via the transmitter 416 to the antenna 420 inthe form of a radio frequency signal. At the receiving end, eachreceiver 456 receives a radio frequency signal through its respectiveantenna 460. Each receiver 456 recovers the baseband informationmodulated onto the radio frequency carrier and provides the basebandinformation to the receiving processor 452. The receiving processor 452implements various signal receiving processing functions of the L1layer. The signal reception processing function includes receiving thephysical layer signal of the first information, K piece(s) of targetinformation, and Q target wireless signal groups in the presentdiscourse, multi-carrier symbols in a multi-carrier symbol stream basedon various modulation schemes, demodulating based on various modulationschemes (e.g., binary phase shift keying (BPSK), quadrature phase shiftkeying (QPSK)) by multi-carrier symbols in a multi-carrier symbolstream, subsequently decoding and deinterleaving to recover data orcontrol transmitted by the gNB 410 on the physical channel, and thenproviding data and control signals to the controller/processor 490. Thecontroller/processor 490 implements the L2 layer. Thecontroller/processor can be associated with a memory 480 that storesprogram codes and data. The memory 480 can be referred to as a computerreadable medium.

In Uplink (UL) transmission, the upper layer packet DL-SCH, includingthe first information in the present disclosure, is provided to thecontroller/processor 440 using the data source 467. The data source 467represents all protocol layers above the L2 layer. Thecontroller/processor 490 provides header compression, encryption, packetsegmentation and reordering, and multiplexing between logical andtransport channels to implement L2 layer protocols for the user planeand the control plane. The controller/processor 490 is also responsiblefor HARQ operations, retransmission of lost packets, and a signaling tothe gNB 410. The transmitting processor 455 implements various signaltransmission processing functions for the L1 layer (i.e., the physicallayer). The signal transmitting processing functions include encodingand interleaving to facilitate forward error correction (FEC) at the UE350 and modulating the baseband signal based on various modulationschemes (e.g., BPSK, QPSK, etc.), dividing the modulation symbols intoparallel streams and mapping each stream to a correspondingmulti-carrier subcarrier and/or multi-carrier symbol, and thentransmitting the mapped symbol streams from the transmitting processor455 via the transmitter 456 to the antenna 460 for transmission in theform of a radio frequency signal. The first wireless signal in thepresent disclosure is generated by the transmitting processor 455 andmapped to the antenna 460 for transmission via the transmitter 456. Thereceiver 416 receives radio frequency signals through the correspondingantenna 420. Each receiver 416 recovers the baseband informationmodulated onto the radio frequency carrier and provides the basebandinformation to the receiving processor 412. The receiving processor 412implements various signal receiving processing functions for the L1layer (i.e., the physical layer). The signal receiving processingfunctions include acquiring multi-carrier symbol stream, demodulatingthe multi-carrier symbols in a multi-carrier symbol stream based onvarious modulation schemes (e.g., BPSK, QPSK, etc.), subsequentlydecoding and deinterleaving to recover data and/or control signalsoriginally transmitted by the UE 450 on the physical channel, and thenproviding the data and/or control signals to the controller/processor440. The L2 layer function is implemented at the controller/processor440. The controller/processor can be associated with a memory 480 thatstores program codes and data. The memory 480 can be referred to as acomputer readable medium.

In one sub-embodiment, the UE 450 includes: at least one processor andat least one memory. The at least one memory includes computer programcode. The at least one memory and the computer program code areconfigured to be used together with the at least one processor. The UE450 at least: receives first information, wherein the first informationbeing used to trigger a first operation, receives K piece(s) of targetinformation, and transmits a first wireless signal; wherein atransmission power value of the first wireless signal is a first powervalue; the first power value is irrelevant to all piece(s) of targetinformation received prior to triggering the first operation; the Kpiece(s) of target information is(are) received after triggering thefirst operation; the sum of K power offset value(s) is(are) used todetermine the first power value; the K power offset value(s) is(are)respectively indicated by the K piece(s) of target information; thefirst information is used to determine P antenna port group(s); thefirst power value is associated with a first antenna port group; theantenna port group(s) comprises(comprise) a positive integer number ofantenna port(s); the P is a positive integer; the K is a positiveinteger.

In one sub-embodiment, the UE 450 includes a memory storing a computerreadable instruction program that, when executed by at least oneprocessor, performs operations. The operations include: receiving firstinformation, wherein the first information being used to trigger a firstoperation, receiving K piece(s) of target information, and transmittinga first wireless signal; wherein a transmission power value of the firstwireless signal is a first power value; the first power value isirrelevant to all piece(s) of target information received prior totriggering the first operation; the K piece(s) of target informationis(are) received after triggering the first operation; the sum of Kpower offset value(s) is(are) used to determine the first power value;the K power offset value(s) is(are) respectively indicated by the Kpiece(s) of target information; the first information is used todetermine P antenna port group(s); the first power value is associatedwith a first antenna port group; the antenna port group(s)comprises(comprise) a positive integer number of antenna port(s); the Pis a positive integer; the K is a positive integer.

In one sub-embodiment, the gNB 410 includes: at least one processor andat least one memory. The at least one memory includes computer programcode. The at least one memory and the computer program code areconfigured to use with the at least one processor together. The UE 450at least: transmits first information, wherein the first informationbeing used to trigger a first operation, transmits K piece(s) of targetinformation, and receives a first wireless signal; wherein atransmission power value of the first wireless signal is a first powervalue; the first power value is irrelevant to all piece(s) of targetinformation received prior to triggering the first operation; the Kpiece(s) of target information is(are) received after triggering thefirst operation; the sum of K power offset value(s) is(are) used todetermine the first power value; the K power offset value(s) is(are)respectively indicated by the K piece(s) of target information; thefirst information is used to determine P antenna port group(s); thefirst power value is associated with a first antenna port group; theantenna port group(s) comprises(comprise) a positive integer number ofantenna port(s); the P is a positive integer; the K is a positiveinteger.

In one sub-embodiment, the gNB 410 includes: a memory storing a computerreadable instruction program that, when executed by at least oneprocessor, performs operations. The operations include: transmittingfirst information, wherein the first information being used to trigger afirst operation, transmitting K piece(s) of target information, andreceiving a first wireless signal; wherein a transmission power value ofthe first wireless signal is a first power value; the first power valueis irrelevant to all piece(s) of target information received prior totriggering the first operation; the K piece(s) of target informationis(are) received after triggering the first operation; the sum of Kpower offset value(s) is(are) used to determine the first power value;the K power offset value(s) is(are) respectively indicated by the Kpiece(s) of target information; the first information is used todetermine P antenna port group(s); the first power value is associatedwith a first antenna port group; the antenna port group(s)comprises(comprise) a positive integer number of antenna port(s); the Pis a positive integer; the K is a positive integer.

In one embodiment, the UE 450 corresponds to the user equipment in thepresent disclosure.

In one embodiment, the gNB 410 corresponds to the base station in thepresent disclosure.

In one embodiment, the first receiver 101 in Embodiment 3 of the presentdisclosure includes the antenna 460, the receiver 456, and the receivingprocessor 452.

In one embodiment, the first receiver 101 in Embodiment 3 of the presentdisclosure includes the controller/processor 490 and the memory 467.

In one embodiment, the second receiver 102 in Embodiment 3 of thepresent disclosure includes the antenna 460, the receiver 456, and thereceiving processor 452.

In one embodiment, the second receiver 102 in Embodiment 3 of thepresent disclosure includes the memory 467.

In one embodiment, the first transmitter 103 in Embodiment 3 of thepresent disclosure includes the antenna 460, the transmitter 456, andthe transmission processor 455.

In one embodiment, the first transmitter 103 in Embodiment 3 of thepresent disclosure includes the controller/processor 490 and the datasource 467.

In one embodiment, the second transmitter 401 in Embodiment 4 of thepresent disclosure includes the antenna 420, the transmitter 416, andthe transmission processor 415.

In one embodiment, the second transmitter 401 in Embodiment 4 of thepresent disclosure includes the controller/processor 440 and the datasource 430.

In one embodiment, the third transmitter 402 in Embodiment 4 of thepresent disclosure includes the antenna 420, the transmitter 416, andthe transmission processor 415.

In one embodiment, the third transmitter 402 in Embodiment 4 of thepresent disclosure includes the data source 430.

In one embodiment, the third receiver 403 in Embodiment 4 of the presentdisclosure includes the antenna 420, the receiver 416, and the receivingprocessor 412.

In one embodiment, the third receiver 403 in Embodiment 4 of the presentdisclosure includes the controller/processor 440 and the memory 430.

The ordinary skill in the art may understand that all or part of stepsin the above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only-Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part of steps in the above embodimentsalso may be implemented by one or more integrated circuits.Correspondingly, each module unit in the above embodiment may beimplemented in the form of hardware, or in the form of software functionmodules. The present disclosure is not limited to any combination ofhardware and software in specific forms. The UE and terminal in thepresent disclosure include but are not limited to unmanned aerialvehicles, communication modules on unmanned aerial vehicles,telecontrolled aircrafts, aircrafts, diminutive airplanes, mobilephones, tablet computers, notebooks, vehicle-mounted communicationequipment, radio sensor, network cards, terminals for Internet of Things(TOT), RFID terminals, NB-IOT terminals, Machine Type Communication(MTC) terminals, enhanced MTC (eMTC) terminals, data cards, low-costmobile phones, low-cost tablet computers, etc. The base station in thepresent disclosure includes but is not limited to macro-cellular basestations, micro-cellular base stations, home base stations, relay basestation, gNB (NR node B), Transmitter Receiver Point (TRP), and otherradio communication equipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

What is claimed is:
 1. A method for power adjustment in a user equipment(UE), comprising: receiving first information from a base station,wherein: the first information is used to trigger a first operation, thefirst operation including an accumulation reset corresponding to a firstpower value; receiving K piece(s) of target information from the basestation, wherein: the K piece(s) of target information is(are) receivedby the UE after triggering of the first operation; and the K is apositive integer; transmitting a first wireless signal; wherein, thetransmission power value of the first wireless signal is the first powervalue; the first power value is irrelevant to all piece(s) of targetinformation received by the UE prior to triggering the accumulationreset; a sum of K power offset value(s) is used by the UE to calculatethe first power value; the K power offset value(s) is(are) respectivelyindicated by the K piece(s) of target information; the first informationis used to determine one antenna port group; the first power value isassociated with the one antenna port group; the antenna port groupcomprises at least one antenna port; the K is a positive integer; thefirst power value is calculated based on a measurement of the oneantenna port group; the target information is a Transmitting PowerControl field, the first information is a Radio Resource Control layersignaling.
 2. The method of claim 1, comprising: receiving Q targetwireless signals; and determining Q reference power values; wherein theQ target wireless signals are respectively transmitted by Q antenna portgroups; the one antenna port group is a subset of the Q antenna portgroups; measurements for the Q target wireless signals are respectivelyused to determine the Q reference power values; the Q is a positiveinteger greater than 1; and the Q antenna port groups are used fordownlink communications transmitted by the base station; the first powervalue is one of the Q reference power values; a unit of the referencepower value is dBm; the measurement of the one antenna port groupincludes a pathloss value.
 3. The method of claim 2, wherein the firstinformation comprises a sub-information block; the sub-information blockcorresponds to the one antenna port group; the sub-information blockindicates at least one of an index of the one antenna port group or aparameter set of the one antenna port group; the parameter set includesat least one of a pathloss value compensation factor and a type-onedesired power, a linear coefficient between a corresponding referencepower value and a pathloss value is the compensation factor, a linearcoefficient between a corresponding reference power value and a type-onedesired power is 1
 4. The method of claim 2, wherein the first wirelesssignal comprises a first difference value; the first difference value isa difference between a first limited power and a first reference powervalue; the first reference power value is linearly related to the sum ofthe K power offset(s); the first reference power value is linearlyrelated to a reference pathloss value; the reference pathloss value is apathloss value corresponding to the one antenna port group, the firstreference power value is a power headroom report.
 5. The method of claim3, wherein the first wireless signal comprises a first difference value;the first difference value is a difference between a first limited powerand a first reference power value; the first reference power value islinearly related to the sum of the K power offset(s); the firstreference power value is linearly related to a reference pathloss value;the reference pathloss value is a pathloss value corresponding to theone antenna port group, the first reference power value is a powerheadroom report.
 6. The method of claim 1, further comprising: receivingK DCI(s); wherein the K DCI(s) respectively comprises(comprise) the Kpiece(s) of target information; a first signaling is the latest receivedone among the K DCI(s); the first signaling comprises schedulinginformation of the first wireless signal; the scheduling informationcomprises at least one of occupied time domain resources, occupiedfrequency domain resources, Modulation and Coding Status, HybridAutomatic Repeat request process numbers, Redundancy Version, or NewData Indicator; the transport channel corresponding to the firstwireless signal is an Uplink Shared Channel(UL-SCH), or, the physicallayer channel corresponding to the first wireless signal is a PhysicalUplink Shared Channel (PUSCH).
 7. The method of claim 1, wherein thephrase the first power value is associated with the one antenna portgroup means that: the measurement of the one antenna port group includesmeasurements for all of the antenna ports in the one antenna port group,or, the measurement of the one antenna port group includes measurementsfor a part of the antenna ports in the one antenna port group.
 8. Amethod for power adjustment in a base station, comprising: transmittingfirst information, wherein: the first information is used to trigger afirst operation, the first operation including an accumulation resetcorresponding to a first power value; transmitting K piece(s) of targetinformation, wherein: the K piece(s) of target information is(are)received after triggering of the first operation; and the K is apositive integer; receiving a first wireless signal; wherein, thetransmission power value of the first wireless signal is the first powervalue; the first power value is irrelevant to all piece(s) of targetinformation prior to triggering the accumulation reset; a sum of K poweroffset value(s) is used to calculate the first power value; the K poweroffset value(s) is(are) respectively indicated by the K piece(s) oftarget information; the first information is used to determine oneantenna port group; the first power value is associated with the oneantenna port group; the antenna port group comprises at least oneantenna port; the K is a positive integer; the first power value iscalculated based on a measurement of the one antenna port group; thetarget information is a Transmitting Power Control field, the firstinformation is a Radio Resource Control layer signaling.
 9. The methodof claim 8, wherein the first information comprises a sub-informationblock; the sub-information block corresponds to the one antenna portgroup; the sub-information block indicates at least one of an index ofthe one antenna port group or a parameter set of the one antenna portgroup; the parameter set includes at least one of a pathloss valuecompensation factor and a type-one desired power, a linear coefficientbetween a corresponding reference power value and a pathloss value isthe compensation factor, a linear coefficient between a correspondingreference power value and a type-one desired power is 1
 10. The methodof claim 9, wherein the first wireless signal comprises a firstdifference value; the first difference value is a difference between afirst limited power and a first reference power value; the firstreference power value is linearly related to the sum of the K poweroffset(s); the first reference power value is linearly related to areference pathloss value; the reference pathloss value is a pathlossvalue corresponding to the one antenna port group, the first referencepower value is a power headroom report.
 11. A user equipment (UE) forpower adjustment, comprising: a first receiver receiving firstinformation from a base station, wherein: the first information is usedto trigger a first operation, the first operation including anaccumulation reset corresponding to a first power value; a secondreceiver receiving K piece(s) of target information from the basestation, wherein: the K piece(s) of target information is(are) receivedby the UE after triggering of the first operation; and the K is apositive integer; a first transmitter transmitting a first wirelesssignal; wherein, the transmission power value of the first wirelesssignal is the first power value; the first power value is irrelevant toall piece(s) of target information received by the UE prior totriggering the accumulation reset; a sum of K power offset value(s) isused by the UE to calculate the first power value; the K power offsetvalue(s) is(are) respectively indicated by the K piece(s) of targetinformation; the first information is used to determine one antenna portgroup; the first power value is associated with the one antenna portgroup; the antenna port group comprises at least one antenna port; the Kis a positive integer; the first power value is calculated based on ameasurement of the one antenna port group; the target information is aTransmitting Power Control field, the first information is a RadioResource Control layer signaling.
 12. The user equipment of claim 11,comprising: a first receiver receiving Q target wireless signals; anddetermining Q reference power values; wherein the Q target wirelesssignals are respectively transmitted by Q antenna port groups; the oneantenna port group is a subset of the Q antenna port groups;measurements for the Q target wireless signals are respectively used todetermine the Q reference power values; the Q is a positive integergreater than 1; and the Q antenna port groups are used for downlinkcommunications transmitted by the base station; the first power value isone of the Q reference power values; a unit of the reference power valueis dBm; the measurement of the one antenna port group includes apathloss value.
 13. The user equipment of claim 12, wherein the firstinformation comprises a sub-information block; the sub-information blockcorresponds to the one antenna port group; the sub-information blockindicates at least one of an index of the one antenna port group or aparameter set of the one antenna port group; the parameter set includesat least one of a pathloss value compensation factor and a type-onedesired power, a linear coefficient between a corresponding referencepower value and a pathloss value is the compensation factor, a linearcoefficient between a corresponding reference power value and a type-onedesired power is 1
 14. The user equipment of claim 12, wherein the firstwireless signal comprises a first difference value; the first differencevalue is a difference between a first limited power and a firstreference power value; the first reference power value is linearlyrelated to the sum of the K power offset(s); the first reference powervalue is linearly related to a reference pathloss value; the referencepathloss value is a pathloss value corresponding to the one antenna portgroup, the first reference power value is a power headroom report. 15.The user equipment of claim 13, wherein the first wireless signalcomprises a first difference value; the first difference value is adifference between a first limited power and a first reference powervalue; the first reference power value is linearly related to the sum ofthe K power offset(s); the first reference power value is linearlyrelated to a reference pathloss value; the reference pathloss value is apathloss value corresponding to the one antenna port group, the firstreference power value is a power headroom report.
 16. The user equipmentof claim 11, further comprising: the second receiver receiving K DCI(s);wherein the K DCI(s) respectively comprises(comprise) the K piece(s) oftarget information; a first signaling is the latest received one amongthe K DCI(s); the first signaling comprises scheduling information ofthe first wireless signal; the scheduling information comprises at leastone of occupied time domain resources, occupied frequency domainresources, Modulation and Coding Status, Hybrid Automatic Repeat requestprocess numbers, Redundancy Version, or New Data Indicator; thetransport channel corresponding to the first wireless signal is anUplink Shared Channel(UL-SCH), or, the physical layer channelcorresponding to the first wireless signal is a Physical Uplink SharedChannel (PUSCH).
 17. The user equipment of claim 11, wherein the phrasethe first power value is associated with the one antenna port groupmeans that: the measurement of the one antenna port group includesmeasurements for all of the antenna ports in the one antenna port group,or, the measurement of the one antenna port group includes measurementsfor a part of the antenna ports in the one antenna port group.
 18. Abase station for power adjustment, comprising: a second transmittertransmitting first information, wherein: the first information is usedto trigger a first operation, the first operation including anaccumulation reset corresponding to a first power value; a thirdtransmitter transmitting K piece(s) of target information, wherein: theK piece(s) of target information is(are) received after triggering ofthe first operation; and the K is a positive integer; a third receiverreceiving a first wireless signal; wherein, the transmission power valueof the first wireless signal is the first power value; the first powervalue is irrelevant to all piece(s) of target information prior totriggering the accumulation reset; a sum of K power offset value(s) isused to calculate the first power value; the K power offset value(s)is(are) respectively indicated by the K piece(s) of target information;the first information is used to determine one antenna port group; thefirst power value is associated with the one antenna port group; theantenna port group comprises at least one antenna port; the K is apositive integer; the first power value is calculated based on ameasurement of the one antenna port group; the target information is aTransmitting Power Control field, the first information is a RadioResource Control layer signaling.
 19. The base station of claim 18,wherein the first information comprises a sub-information block; thesub-information block corresponds to the one antenna port group; thesub-information block indicates at least one of an index of the oneantenna port group or a parameter set of the one antenna port group; theparameter set includes at least one of a pathloss value compensationfactor and a type-one desired power, a linear coefficient between acorresponding reference power value and a pathloss value is thecompensation factor, a linear coefficient between a correspondingreference power value and a type-one desired power is 1
 20. The basestation of claim 19, wherein the first wireless signal comprises a firstdifference value; the first difference value is a difference between afirst limited power and a first reference power value; the firstreference power value is linearly related to the sum of the K poweroffset(s); the first reference power value is linearly related to areference pathloss value; the reference pathloss value is a pathlossvalue corresponding to the one antenna port group, the first referencepower value is a power headroom report.